Revert "lenovo/t400/4.5-1564-g6fa36c9c2c-dirty/2017-04-16T13_28_27Z"

This reverts commit e5454d36ca2f96e452a228db9a1485bff2e8f32e.

The commit in question deletes a lot of unrelated files, and needs to be
reverted.
diff --git a/lenovo/t420/4.1-657-g2f225b9-dirty/2015-10-18T02:07:10Z/coreboot_timestamps.txt b/lenovo/t420/4.1-657-g2f225b9-dirty/2015-10-18T02:07:10Z/coreboot_timestamps.txt
new file mode 100644
index 0000000..9832505
--- /dev/null
+++ b/lenovo/t420/4.1-657-g2f225b9-dirty/2015-10-18T02:07:10Z/coreboot_timestamps.txt
@@ -0,0 +1,27 @@
+22 entries total:
+
+   0:1st timestamp                                     1
+   1:start of rom stage                                49 (47)
+   2:before ram initialization                         577 (527)
+   3:after ram initialization                          31,617 (31,040)
+   4:end of romstage                                   31,618 (0)
+   8:starting to load ramstage                         31,626 (7)
+  15:starting LZMA decompress (ignore for x86)         31,626 (0)
+  16:finished LZMA decompress (ignore for x86)         31,642 (16)
+   9:finished loading ramstage                         31,642 (0)
+  10:start of ramstage                                 31,889 (247)
+  30:device enumeration                                31,893 (4)
+  40:device configuration                              32,085 (191)
+  50:device enable                                     32,649 (564)
+  60:device initialization                             32,678 (29)
+  70:device setup done                                 34,045 (1,366)
+  75:cbmem post                                        34,048 (3)
+  80:write tables                                      34,341 (293)
+  90:load payload                                      34,595 (253)
+  15:starting LZMA decompress (ignore for x86)         34,615 (20)
+  16:finished LZMA decompress (ignore for x86)         34,625 (9)
+  15:starting LZMA decompress (ignore for x86)         34,638 (13)
+  16:finished LZMA decompress (ignore for x86)         34,782 (143)
+  99:selfboot jump                                     34,791 (9)
+
+Total Time: 34,781